Caroline Lucas has been ranked as the most left-wing MP in Britain, according to a new survey.

Royal Holloway, University of London, and polling company Survation found that the Green MP for Brighton Pavilion was the most to the left on the political spectrum of the more than 600 representatives analysed.

The research was conducted based on a survey of local councillors across England, Wales and Scotland who were asked to choose the most left or right-wing MP out of a pair of MPs from their local area.

Researchers modelled councillors' choices to work out which MPs were more likely to be picked as left or right-wing, given their own position and the likely positions of the MPs they were compared to.

Each MP was given a number, with smaller numbers indicating more left-wing MPs, with larger numbers more to the right.

Ms Lucas was assigned a score of four, with neighbouring Labour MP for Brighton Kemptown Lloyd Russell-Moyle being given a score of 18.

On the other end of the scale, Conservative MP for Wokingham John Redwood was ranked as the most right-wing, with a score of 94.

In Sussex, Tory MP for Arundel and South Downs Andrew Griffith was found to be the most right-wing MP, scoring 81.

Where do Sussex MPs rank on the political spectrum?

  • Caroline Lucas, Brighton Pavilion (Green) - 4
  • Lloyd Russell-Moyle, Brighton Kemptown (Labour) - 18
  • Peter Kyle, Hove (Labour) - 44
  • Mims Davies, Mid Sussex (Conservative) - 71
  • Tim Loughton, East Worthing and Shoreham (Conservative) - 72
  • Sally-Ann Hart, Hastings and Rye (Conservative) - 72
  • Sir Peter Bottomley, Worthing West (Conservative) - 72
  • Maria Caulfield, Lewes (Conservative) - 74
  • Huw Merriman, Bexhill and Battle (Conservative) - 75
  • Henry Smith, Crawley (Conservative) - 76
  • Jeremy Quin, Horsham (Conservative) - 76
  • Gillian Keegan, Chichester (Conservative) - 77
  • Caroline Ansell, Eastbourne (Conservative) - 77
  • Nick Gibb, Bognor Regis and Littlehampton (Conservative) - 78
  • Nusrat Ghani, Wealden (Conservative) - 80
  • Andrew Griffith, Arundel and South Downs (Conservative) - 81

Lead researcher Professor Chris Hanretty from the department of politics, international relations and philosophy at Royal Holloway said: “Lots of us who follow politics obsessively know which MPs are most left or right-wing, but we might struggle to rank all MPs and we’d find it hard to communicate those results to voters.

“At a time when elections are looming, we hope this research enables voters to better understand the position of their local representative on the economy.”

Responding to the survey, Ms Lucas took to social media and said: “I don’t think the left-right spectrum is the most useful measure of political thinking but as the UK’s most left-wing MP according to this metric, it is reassuring to know that my views couldn’t be any further away from those of John Redwood.”